I did a decent amount of research, but maybe I didn't go back far enough time-wise. One problem I found was that people seemed to be burned out on explaining calmly and rationally why the cheap Chinese lights are a bad idea (as you have), most were reduced to "they suck", or something similar. I will use anything that works -- I've had plants veg incredibly well under an LED shop light I got at Home Depot -- so I'm open to trying anything. Having decided to roll the dice and try a pair of them, I've found: totally deceptive marketing, incompetent customer service, and over all low quality. I am interested in this thread because I got their cheapest bottom of the line "old model", and I'm curious if they put more effort into their Mars II lights. But its kind of moot, because having been burned once, they've lost me forever.
I will finish out one grow cycle with mine (assuming they make it through), and then I'll put them on the shelf as back-up emergency lights, in case some other light fails for some reason (as any light will fail eventually). For a relatively minimal investment, if they save a crop somewhere down the road while I'm fixing or replacing some other piece of equipment, then it wasn't a total waste.